LG Chem yana gwada ƙwayoyin lithium-sulfur (Li-S). "Serial samar bayan 2025"

Muna danganta LG Chem musamman tare da ƙwararrun ƙwayoyin lithium-ion waɗanda ake amfani da su sosai a motocin lantarki. Koyaya, kamfanin yana gwaji tare da wasu mafita kamar ƙwayoyin sulfur na lithium. Sakamakon yana da ban sha'awa, samar da taro zai yiwu a cikin rabi na biyu na shekaru goma.

Jirgin sama mara matuki tare da baturin Li-S ya karya rikodin tashi a cikin mashigin

Cibiyar Binciken Sararin Samaniya ta Koriya ta Kudu ta ƙirƙiro jirgin sama mara matuƙi na EAV-3. Yana amfani da sabbin ƙwayoyin Li-S da LG Chem ya haɓaka. A lokacin gwaji na sa'o'i 13 da batir EAV-3 ke amfani da shi, ya yi tafiya na tsawon sa'o'i 7 a cikin sararin samaniya a tsayin kilomita 12 zuwa 22. Don haka, ya karya tarihin tsayin daka na jirage marasa matuki (source).

Kwayoyin lithium-ion na gargajiya suna da graphite ko graphite anodes da aka yi da silicon. Kwayoyin Li-S waɗanda LG Chem suka haɓaka sun dogara ne akan anodes na sulfur na carbon. Mun koya kawai game da cathodes waɗanda ke amfani da lithium, don haka za su iya zama cathodes NCM. Mai sana'anta bai bayyana wasu ƙarin sigogi na fasaha don ƙwayoyin sel ba, amma ya ce godiya ga yin amfani da sulfur (gravimetric), ƙarfin kuzarin sel yana da "fiye da sau 1,5 mafi girma" fiye da na ƙwayoyin lithium-ion.

Wannan shine mafi ƙarancin 0,38 kWh / kg.

LG Chem ya sanar da cewa zai samar da sabbin nau'ikan kwayoyin halitta wadanda za su iya sarrafa jirgin sama na kwanaki da yawa. Saboda haka, yana da sauƙi a yanke cewa masana'anta bai riga ya warware matsalar rushewar sulfur a cikin electrolyte da saurin lalata baturin Li-S ba - akwai photocells a kan fuka-fuki, don haka babu karancin makamashi.

Duk da wannan Kamfanin yana tsammanin yawan samar da ƙwayoyin lithium sulfur zai fara bayan 2025.... Za su sami ƙarfin kuzari sau biyu na ƙwayoyin lithium-ion.